package com.hhf.riceshopping.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.hhf.common.constant.ProductConstant;
import com.hhf.riceshopping.product.dao.AttrAttrgroupRelationDao;
import com.hhf.riceshopping.product.dao.AttrGroupDao;
import com.hhf.riceshopping.product.dao.CategoryDao;
import com.hhf.riceshopping.product.entity.AttrAttrgroupRelationEntity;
import com.hhf.riceshopping.product.entity.AttrGroupEntity;
import com.hhf.riceshopping.product.entity.CategoryEntity;
import com.hhf.riceshopping.product.service.CategoryService;
import com.hhf.riceshopping.product.vo.AttrGroupRelationVo;
import com.hhf.riceshopping.product.vo.AttrRespVo;
import com.hhf.riceshopping.product.vo.AttrVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.hhf.common.utils.PageUtils;
import com.hhf.common.utils.Query;

import com.hhf.riceshopping.product.dao.AttrDao;
import com.hhf.riceshopping.product.entity.AttrEntity;
import com.hhf.riceshopping.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    AttrAttrgroupRelationDao relationDao;

    @Autowired
    AttrGroupDao attrGroupDao;

    @Autowired
    CategoryDao categoryDao;

    @Autowired
    CategoryService categoryService;



    @Override
    public PageUtils queryPage(Map<String, Object> params) {
            IPage<AttrEntity> page = this.page(
                    new Query<AttrEntity>().getPage(params),
                    new QueryWrapper<AttrEntity>()
            );

            return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);//第一个属性的来源，第二个要复制到那个属性上
       //保存基本数据
        this.save(attrEntity);

        //保存关联关系
        if (attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId()!=null){  //基本属性，才需要保存分组关系
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attrEntity.getAttrId());
            relationDao.insert(relationEntity);
        }

    }

    @Override
    public PageUtils  queryBeseAttrPage(Map<String, Object> params, Long catelogId, String type)
    {
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("attr_type","base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SATE.getCode());

        if (catelogId != 0){  //不是查询所有的
            //类型是基本类型就是查询1，否则就是查询0
            wrapper.eq("catelog_id",catelogId);
        }
        String key = (String) params.get("key");
        //如果有检索条件
        if (!StringUtils.isEmpty(key)){
            wrapper.and((s)->{
                s.eq("attr_id",key).or().like("attr_name",key);
            });
        }

        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                wrapper

        );
        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();  //获取全部的记录
        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);
            //利用属性id查找属性分组id
            if ("base".equalsIgnoreCase(type)){
                AttrAttrgroupRelationEntity attr_id = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().
                        eq("attr_id", attrEntity.getAttrId()));
                if (attr_id != null && attr_id.getAttrGroupId()!=null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attr_id.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }


            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }
            return attrRespVo;
        }).collect(Collectors.toList());
        pageUtils.setList(respVos);
        return pageUtils;
    }


    /**
     * 查询属性详情
     * @param attrId
     * @return
     */
    @Cacheable(value = "attr",key = "'attrinfo:'+#root.args[0]")
    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrRespVo respVo = new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,respVo);

        if (attrEntity.getAttrType() ==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //查询分组信息
            AttrAttrgroupRelationEntity attrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if (attrgroupRelation!=null){
                //设置分组id
                respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
                //查询当前分组的详细信息
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
                if (attrGroupEntity!=null){
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }

        //查询分类的完整路径信息
        Long[] catelogPath = categoryService.findCatelogPath(attrEntity.getCatelogId());
        //设置分类的完整路径
        respVo.setCatelogPath(catelogPath);
        CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
        if (categoryEntity!=null){
            respVo.setCatelogName(categoryEntity.getName());
        }

        return respVo;
    }

    @Transactional
    @Override
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);
        if (attrEntity.getAttrType() ==ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //修改分组关联信息:  UPDATE `pms_attr_attrgroup_relation` SET `attr_group_id` =? WHERE `attr_id`=?
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());
            //根据一个条件来统计数量，看当前attrid有没有关联的分组属性
            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));

            //如果说统计出来有这个count属性，也就是count>0的，说明是进行一个修改，如果不大于0就说明需要进行新增操作
            if (count>0){
                relationDao.update(relationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
            }else {
                relationDao.insert(relationEntity);
            }
        }


    }

    /**
     * 根据分组id找到组内关联的所有属性信息
     * @param attrgroupId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        //
        List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        //获取到属性id的集合
        List<Long> attrIds = entities.stream().map((attr) -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());
        if (attrIds==null || attrIds.size()==0){
            return null;
        }
        //通过属性id的集合查询出所有当前属性信息
        Collection<AttrEntity> attrEntities = this.listByIds(attrIds);

        return (List<AttrEntity>) attrEntities;
    }

    @Override
    public void deleteRelation(AttrGroupRelationVo[] vos) {
       // relationDao.delete(new QueryWrapper<>().eq("attr_id",1l).eq("attr_group_id"));
        List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());
        relationDao.deleteBatchRelation(entities);
    }

    /**
     * 获取当前分组没有关联的所有属性信息
     * @param params
     * @param attrgroupId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //当前分组只能关联自己所属的分类里边的属性信息
        //查询所有属性是指定分类的，根据分组的id查询出这个分组所属哪个分类
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();

        //当前分组只能关联别的分组没有引用的属性信息
        //可以找到当前分类下的其他分组,并且这个其他分组必须还不是当前分组，也就是分组的id不能是我当前分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> collect = group.stream().map(item -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());
        //然后再找到这个分组关联的所有属性
        List<AttrAttrgroupRelationEntity> groupId = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrIds = groupId.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());
        //从当前分类的所有属性中移除这些属性信息，就可以得到没有关联的属性信息
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if (attrIds!=null && attrIds.size()>0){
            wrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
               w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);
        PageUtils pageUtils = new PageUtils(page);
        return pageUtils;
    }

    /**
     * 在指定的所有属性集合里边，挑出检索属性
     * @param attrIds
     * @return
     */
    @Override
    public List<Long> selectSearchAttrsIds(List<Long> attrIds) {
        //SELECT attr_id FROM `pms_attr` WHERE attr_id IN(attrIds) AND search_type = 1
        return baseMapper.selectSearchAttrsIds(attrIds);

    }

}